<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<title>019-函数的定义.html</title>
</head>
<body>

</body>
<script type="text/javascript">
	//1.函数声明
	// function show(){
	// 	console.log(1)
	// }
	// console.log(show)
	// show()
	// window.show()

	//2.函数表达式
	var show = function(){
		console.log(2)
	}
	show(2)
</script>
</html>